Linux-audio-user November 2012

linux-audio-user@lists.linuxaudio.org

104 participants
103 discussions

by Dan MacDonald

Hello LA land! I got a Startech USB audio device based on the C-Media CM6206 purely in the hope of being able to use its S/PDIF input under JACK. It runs JACK just fine, I just don't know how I might access the SPDIF input (or even the line-in, just out of interest) from under JACK? When I run alsamixer and switch to viewing the capture ports of the cm6206 there are 4 capture channels - PCM, Line, Mic and S/PDIF In but under JACK I only get 2 capture ports which are the L and R analogue mic input channels. I can also see the light emitting from the S/PDIF out port so I am confident the S/PDIF should work and hopefully under JACK. I'm running AV Linux 6 arecord -l **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC262 Analog [ALC262 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM] Subdevices: 8/8 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 Subdevice #4: subdevice #4 Subdevice #5: subdevice #5 Subdevice #6: subdevice #6 Subdevice #7: subdevice #7 card 1: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM] Subdevices: 8/8 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 Subdevice #4: subdevice #4 Subdevice #5: subdevice #5 Subdevice #6: subdevice #6 Subdevice #7: subdevice #7 card 2: Device [USB Sound Device], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 cat /proc/asound/devices 1: : sequencer 2: [ 0- 3]: digital audio playback 3: [ 0- 0]: digital audio playback 4: [ 0- 0]: digital audio capture 5: [ 0] : control 6: [ 1- 1]: digital audio playback 7: [ 1- 1]: digital audio capture 8: [ 1- 0]: digital audio playback 9: [ 1- 0]: digital audio capture 10: [ 1] : control 11: [ 2- 0]: digital audio playback 12: [ 2- 0]: digital audio capture 13: [ 2] : control 33: : timer Thanks! Dan

11 years

pd-l2ork 20121112 beta 2 snapshot now available including experimental deb -- please test and provide feedback

by Ivica Ico Bukvic

All, Latest beta 2 version squashes a highly sporadic bug in l2ork version of cwiid library, improvements to the K12 module, and perhaps most notably introduction of a completely rewritten tidy (clean-up) functionality, usability improvements (e.g. when connecting objects that are so far apart that they are not visible on the same screen the canvas focus follows cursor and connection cord; consistent positioning of iemgui objects; autopatching improvements; etc.), as well as improved automated compiler from source (see pure-data/l2ork_addons/tar_em_up.sh in the dev tarball). For a detailed list of improvements, please consult pd-l2ork's git project page. This is also the first release of the .deb format. It is currently generated in a way that clashes with other forms of pd so please be aware of that (in other words installing pd-l2ork requires uninstalling of pure-data/pd-extended due to some shared files). Also, everything has been compiled on Ubuntu 12.04 which has caused some grief to those who run Debian systems that do not ship (yet) with glibc 2.15. Even if you are running Debian, I would still appreciate it if you would test the .deb to see if it dpkg will detect the lack of glibc 2.15 prior to trying to install it, as well as to check if all the supporting libraries are also appropriately installed. That said, *PLEASE BE CAREFUL WITH THE DEB* since this is the first one I ever made of pd-l2ork and as such I am not sure how it will behave and/or whether it will work at all. So, if you are interested in experimenting with .deb files I would advise doing so on a non-production system. All that said, the deb worked fine on my end (Ubuntu 12.04). As usual, regular binary builds are also available. I'd appreciate feedback on the said builds. Please include as much info as possible, including distro/version/32 vs 64bit/problem and how it manifests itself, etc. You can get pd-l2ork from the usual place: http://l2ork.music.vt.edu/main/?page_id=56 Thanks! Ivica Ico Bukvic, D.M.A. Composition, Music Technology Director, DISIS Interactive Sound & Intermedia Studio Director, L2Ork Linux Laptop Orchestra Head, ICAT IMPACT Studio Virginia Tech Dept. of Music - 0240 Blacksburg, VA 24061 (540) 231-6139 (540) 231-5034 (fax) ico(a)vt.edu http://www.music.vt.edu/faculty/bukvic/

11 years

linuxaudio downtime Sunday, November 18 for maintenance

by Robin Gareus

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all, linuxaudio.org will be down this Sunday, November 18, from 11:00 to 12:00 EST because our hosting provider is maintaining the storage system. sorry for the inconvenience, robin -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJQorDIAAoJEKCQvOAs9X8EzXwP/RWzKQdCIrOnn0P1G68PmjZK NEkICVmYnuu/ul3C9gtsu/vXkeBrF2+kPo6KQRr2jhT2491UVCHZhnABRPBTbKU3 Yy4wRvk9AM1tHUdhEsOTWu3tyBvN03Crn6RAotpDw+1LBfHHQcjabRxQsYEBAglB YMpSzxHvGrHU7b8yYQlpSQ4Ysro1lYHxzebY02qjpaU4nX49LtdkxSltL4AxXYSi pO9RTrUVGfuwRCoMASmdDtcJxc2XepYs2UayDGst+aqikjYNm0VGL8m84HkBIbgs ulhQOL8/XZyqTgsryr5uZ5pWQ+1ZBiOpkITXd0LaS3G8kcIvLTncuJsLxaPiWeZn 6eo5dIPIh+ttZOBYqWMJhY7YpgPEqakKHD+Ahkfzzo7oTreylt0Xk4HQZ+Wj+vtF We3G/skhgcugtqHpF+o4AILCsmiSwYv51LRyq+y5gaOVYkjTFRx1p4v7sGQAzVVX Bgn7tufO8FREGYctuCsXxaqLGwXV/aY2fXEDebk0lZxBBCut8aYcvgsQ79BU8udT +H/CeSbmeS3QsbptdFsLrFSpPcD+x4Tumq/tfWEBOmw7uXhsp2weC2K6o/wOKmFg W5mZ1nppGjp0qJtkHwP8Fo9iux0YLDCgL40FItrFSD1pOnACq292taylTpf3veCI xWcGTyNEySpTHk3h1Djf =Bydq -----END PGP SIGNATURE-----

11 years

Requirements for huge multitrack editing

by Asa Marco

Hello list, For the first time in my life I need to work with huge recordings, I would like to understand how much memory and computing power is required to handle it on a linux box with Ardour. The recording, retrieved from an Alesis hd24, will be about 1 hour and a half long, 24 channels, 44.1KHz, 16bit, What are the minimal requirements to work with it? If I choose sample rate and bit depth to be 48kHz/24bit, will it require much more resources (other than disk space)? Thank you! -- Asa Marco <marcoasa90(a)gmail.com> 朝

11 years

Using audio from youtube videos [WAS]: Re: Requirements for huge multitrack editing

by Lorenzo Sutton

On 12/11/12 21:19, Fons Adriaensen wrote [in a different thread]: > On Mon, Nov 12, 2012 at 02:17:03PM -0500, Paul Davis wrote: > >> with no plugins, it would be hard to buy a computer today that could *not* >> handle editing that session. > True. I've been doing 30-track editing on a P4 system with 512 MB > memory, no problem at all, Ardour handled that very well. That was > just editing, mixing with a lot of plugins etc. could be another > matter. > > The *only* case when I've seen it fail was strangely enough when > recording just a single stereo track on a dual quad-core machine > with 4GB of memory. Input was coming from firefox playing a Youtube > video, routed via ALSA's Jack plugin, and recording failed repeatedly > with 'your hard disk was not fast enough' messages. Most probably it was flash draining all CPU or something. For this use case I'd recommend using something, such as youtybe-dl (which also provides a nice --extract-audio flag), to download the audio contents and then just import that into Ardour. Lorenzo.

11 years

"Official" :-) Album Release

by Julien Claassen

Hello everyone! I had put this off for such a long time. so here is "A Year starting Now". If memory doesn't betray me, you may have heard all of these songs already, but here they are in one piece and with the general idea, gently holding them together. You can't really call it a concept. http://juliencoder.de/nama/a_year_starting_now/ You will find short explanations for each piece and downloads in OGG and mp3 format. I hope, that seeing them organised and explained together makes a little more sense. More shall follow soon. Warm regards Julien ---------------------------------------- http://juliencoder.de/nama/music.html

11 years

Re: [LAU] Quick question about mudita24

by Tim E. Real

On November 11, 2012 07:34:03 AM you wrote: > I am just wondering to myself how easy/hard it would be to have the GUI of > mudita on a different machine to which it is running. The reason being I > was thinking of using netjack and the box with the audio interface would > end up not having a monitor. It would still be nice to be able to use the > metering to set inputs as the HW metering shows the peaks as the 24bit > input sees them but the application shows things after it has been > 32bit-ized. I have found things look fine in ardour but the input is > peaking. > > I am guessing I could do that now just with x, or a text interface would > work too. I am not asking you to do a bunch of coding unless the idea > catches your fancy. Just asking how easy it looks to split the GUI from > the control part of the app. I suppose it may be just as easy to build a > text version from scratch or on top of alsamixer. Just that you know the > code and I don't (and my coding skills are not production level by any > means :) > > I am seeing that new mother boards are getting harder to deal with audio > cards. I am thinking that when I replace my old one (already 10 years old) > I may not be able to use my audio card and for that matter find an > inexpensive replacement. I may end up using this MB as an ethernet sound > card. I may even package it into a mini-distro... How about MIDI controller assignment to each Mudita slider and checkbox? A reasonable path, it's already using ALSA. Or maybe OSC? Tim.

11 years

[ANN] Radium V1.9.1

by Kjetil Matheussen

Radium is an open source music editor with a novel interface. It's inspired by trackers, but has fewer limitations and uses graphics to show musical data. Screenshot: =========== http://dl.dropbox.com/u/4814054/radium-1.9.1.png Source code: ============ http://dl.dropbox.com/u/4814054/radium-1.9.1.tar.gz 64 bit binary: =============== http://dl.dropbox.com/u/4814054/radium-1.9.1_linux64.tar.gz (Requires GNU libc 2.14 or newer. It should work with Ubuntu 12, Fedora 17 or Mint 13) Homepage: ========= http://users.notam02.no/~kjetism/radium/ (It's not quite updated, I can't seem to login to the web server right now.) Source code repository: ======================= https://github.com/kmatheussen/radium Most important changes 0.67.1 -> 1.9.1: ======================================= * Audio. * A quick-to-use modular mixer. Jack ports can be inserted anywhere. * VST plugins and instruments (native, not via wine) * LADSPA * Fluidsynth instrument * 20 STK instruments. (Physical modelling) * Sampler instrument (soundfiles, xi instruments, soundfonts) * Multiband compressor (http://users.notam02.no/~kjetism/radium/pictures/screenshot-multiband.png) * Built-in filters and equalizers. * Simple arpeggiator * Drunk input velocity * Various GUI improvements * Pitch expand made available in the menues. * Tapiir plugin * Zita reverb plugin * Demo song * Reconfigured keybindings * Various bug fixes Acknowledgment: =============== Full list: http://users.notam02.no/~kjetism/radium/development.php Especially thanks to Yann Orlarey for Faust, Julius O. Smith III for the Faust filter and compressor code and more, Romain Michon for the Faust STK instruments, Fons Adriaensen for the amazing Zita reverb sound (and Julius O. Smith III for the Faust implemention of it), and Rui Nuno Capela for QTractor. (Plugin GUI code are based on code taken from QTractor.)

11 years

zynAddSubFX and more outputs

by christian bunge

Hi, it's possible to have more then the normal stereo output by zynAddSubFX? I like to record different sounds with different midi channels at once, for example with ardour. thanks chris

11 years

Re: [LAU] List of working MIDI devices?

by Thijs van severen

Good point about the driver Unfortunately i couldnt find any info at all about this device (probably because its cheap, new and built by a rather unknown company) and exactly for this reason i would liks to share what i have found out Grtz Thijs On 8 Nov 2012 12:43, "Paul Davis" <paul(a)linuxaudiosystems.com> wrote: On Thu, Nov 8, 2012 at 1:54 AM, Thijs van severen <thijsvanseveren(a)gmail.com> wrote: > > Hi all > > ... there is a reason why MIDI is a standard protocol. the only way that a MIDI device is not Linux compatible is if it doesn't actually send MIDI, but instead uses some proprietary protocol which is then converted by a device driver into MIDI that can be seen by apps on the computer. there are very few such devices. the question to ask is whether it has its own device driver - if it does not, then its about 99.78% certain that it will work on Linux or with any other MIDI capable platform/device.

11 years

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Linux-audio-user November 2012